进入初中后,绝大多数女生已顺利过渡到变声后期且变化不十分明显,只是音域下降了二、三度,由原来的~bb～d~2下降到g～c~2,嗓音显得成熟而丰满。男生除极少数还保持着清脆的童音外,绝大多数开始变声。嗓音状况虽各有差异,但大体上音域都不超出十一度,从孩提时期的~bb～d~2急剧下降到c～e′或f′。在进行歌唱训练前男女声都采用说话的声音(俗称大本嗓)进行歌唱,即真声真唱,到了较高声区都显得力不从心,因而发出声嘶力竭的喊叫声。 更令人头疼的是初中男女声在音高上相差五、六度而不是人们想象中的八度。不论音乐课上唱歌还是歌咏大会上。初中生齐唱合唱定调是个大问题。如果以女声最舒服的调来唱,男声则感到压抑;若照顾了男声, Into the junior high school, the vast majority of girls have a smooth transition to the latter part of the change and change is not very obvious, but the sound field decreased by two or three degrees from the original ~ bb ~ d ~ 2 down to g ~ c ~ 2, the voice appears mature full. In addition to a handful of boys also maintained a crisp voice, the vast majority began to change their voices. Although the voice of different conditions, but in general the sound range does not exceed eleven degrees, from childhood to ~ bb ~ d ~ 2 sharp decline to c ~ e ’or f’. Before performing singing training, both male and female voices used the voice of the speaker (commonly known as Da Beng throat) to sing, that is, the real voice sung to the louder voice zone, which made him shout hoarsely. What is even more troubling is that the sound of junior high school boys and girls differs by a pitch of five or six degrees rather than the octave of people’s imagination. Whether singing or singing in music class conference. Junior high school chorus choir tuning is a big problem. If the most comfortable tune to the female voice to sing, the male voice is depressed; if take care of the male voice,